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" METALLIQ BUSHING.- v

No. 289,654. Patented Dec. 4, 1883.

NA PErEns. Phomulhagnphnr. wnhinm, D.c.

UNTTE STATES MATENT CHARLES HEMJE, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR OF ONE-HALF TO CHRISTIAN ABNER, OF SAME PLACE.

METALLIC BUSHING.

SPECIFICATION forming part of Letters Patent No. 289,654, dated December 4, 1883.

Application filed October` 31, 1883. (No model.)

To all whom, it may concern,.-

Be it known that I, CHARLES HEMJE, a citi `zen of the United States, residing at Washington, in the District of Columbia, have invented certain new and useful Improvements in Metallic Bushings; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to`metallic or rigid bushings for barrels, kegs, te., and especially to that kind in which wooden plugs are used, said plugs being provided with a suitable cavity for the introduction of the spigot into the cavity, so that after the web of the plug has been removed the remaining portion of the Y plug forms a yielding lining in the rigid bush.

ing. One great objection in the bushings now in use is that the web of the plug, which has been compressed so as to give the plug a tapering shape, has a tendency to swell again to its normal-size as soon as the liquid contained in the keg or barrel comes in contact with it, in consequence of which the web is held much more firmly by the bushing than the ring of the plugfor which reason it frequently happens that the web does not split from the ring, as is intended, but carries the ring with it into the keg, thus spilling more or less of the contents.

The obj ect of my invention is that the web of the plug shall not be held any rmer than any other portion of it, or, if anything, shall not be held as firmly, so as to prevent the ring of the plug from being driven through the bushing, and, furthermore, by a peculiar construction of the interior of the bushing, a vcut or groove is made in the exterior circumference of the plug at a point where the split is intended to take place, so that the web can be removed from the ring at a certain point.

In the accompanying drawings, Figure l represents a vertical section of my improved bushing. Fig. 2 is a plan view of the same. Fig. 3 is a bottom View, and Figs. 1i and 5 are modifications of Fig. 3. Fig. 6 is a central sectional View of the form of bung or plug used with my improved bushing.

The bushing is slightly tapering, as shown in Figs. l and 2. On its outer circumference it is provided with screw-threads, for the purpose of fastening it into the head of the keg or barrel, and at the top it is provided with a flange, A, which rests on the head of the keg,

or can be sunk into the head so as to be:1iush..

The interior of the bushing is also slightly tal recesses, as shown in Figs. l and 3, form bel tween them an equal number of projections or shoulders, d d d2. rlhe obj ect of these recesses is that the web or solid porti-on of the plugshall not beheld so firmly, as is the casein the present bushings, where it is held circumferentially, but is only heldby the shoulders or projections d d d2, at the same time allowing theliquid to enter the recesses, so that the web ofthe plug can partially' expand, causing the projections or shoulders to embed themselves more firmly into the web, while the upper nearly rightangled corners of the recesses also embed themselves into the outer circumference of the plug, because, while the web of the plug has a chance to expand into the recesses, the ring of the plug cannot expand, as it rests solidly against the upper or smooth portion of the bushing, thus forming an indentation or cut, which assists the web to split from the ring of the plug at the desired point. Itwill be clearlyunderstood that if the web of the plug is held only by projections d d cl2, which form, as in the drawings shown, only about one-third of the circumference, it will only take about onethird of the power to drive it through the lower end of the bushing as compared withfa bushing which holds the web circumferentially. By increasing or decreasing the width of the shoulders d d d2, the pressure against the web of the plug is either increased or decreased, which pressure can therefore be regulated so that the ring of the plug is held more iirmly than the web, and if such is the case the web will split easily from the ring and prevent the latter from being driven into the keg also. In Fig. 3 the recesses and shoulders are right-angled, or nearly so; but in Fig. 4L the shoulders only are thus, while the corners of the recesses are shoulders, `substantially as and for the purpose described.

3. The combination of a bushing having a series of internal recesses and shoulders at its lower or smaller end and a plug or bung inserted therein, substantially as shown anddescribed.

In -testimonywhereo'f I have afixed my signature in presence of two witnesses.

CHARLES HEMJE.

Vitnesses:

C. R. HANsooM, A. GLnEvns.

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